Appliance electricity cost
How much does a dehumidifier cost to run?
This worked example uses 350 W, 8 hours on each use day and 180 use days per year. Change any of these inputs in the calculator.
Illustrative 25p/kWh electricityAbout £126/year
504 kWh/year · 2.80 kWh per use day
Electricity-price sensitivity
| Electricity price | Energy/use day | Annual energy | Annual cost |
|---|---|---|---|
| 15p/kWh | 2.80 kWh/day when used | 504 kWh/year | £76/yr |
| 25p/kWh | 2.80 kWh/day when used | 504 kWh/year | £126/yr |
| 35p/kWh | 2.80 kWh/day when used | 504 kWh/year | £176/yr |
Important assumption
A dehumidifier may cycle off when the target humidity is reached; 350 W for 8 hours/day is only a worked average-use scenario.
This is a worked planning estimate, not a measurement of your appliance. A smart plug, energy monitor or manufacturer annual-kWh figure usually gives a better real-world input for cycling appliances.